AspNet WeApi 2，Autofac

我正在使用通用接口

public interface IRepository<T> where T :class
                        {
                            List<T> GetAllRecords();
                        }

我还实现了一个通用存储库

public class BaseRepository<T> : IRepository<T> where T : class
                        {
                            protected readonly DataContext context;
                            public BaseRepository(DataContext data)
                            {
                                context = data;
                            }

                            public List<T> GetAllRecords()
                            {
                                return context.Set<T>().AsNoTracking().ToList();
                            }
                        }

DataContext - 数据库上下文。

创建了一个将扩展基本接口的接口

public interface IUserRepository : IRepository<User>
                        {
                            void MyMethod();
                        }

public class UserRepository : BaseRepository<User>, IUserRepository
                        {
                            protected readonly DataContext context;
                            protected readonly IUserRepository repository;
                            public UserRepository(DataContext data, IUserRepository user):base (data)
                            {
                                context = data;
                                repository = user;

                            }

                            public void MyMethod()
                            {
                                throw new NotImplementedException();
                            }

Autofac 配置文件

                         public class AutofacRegister
                    {
                        public static void ConfigureContainer()
                        {

                            // получаем экземпляр контейнера
                            var builder = new ContainerBuilder();
                            var config = GlobalConfiguration.Configuration;

                            // Register your Web API controllers.

                            // builder.RegisterType<DataContext>();
                            builder.RegisterType<UserRepository>().As<IUserRepository>().InstancePerRequest();
                            builder.RegisterApiControllers(Assembly.GetExecutingAssembly());

                            // Set the dependency resolver to be Autofac.
                            var container = builder.Build();
                            var resolver = new AutofacWebApiDependencyResolver(container);

                            // Configure Web API with the dependency resolver.
                            GlobalConfiguration.Configuration.DependencyResolver = resolver;
                        }
                    }

向 GlobalAsax 添加了一行代码

AutofacRegister.ConfigureContainer();

在控制器中。

public class UserController : ApiController
                    {
                        IUserRepository repository;

                        public UserController(IUserRepository user)
                        {
                            repository = user;
                        }

                        public List<User> GetRecords()
                        {
                            return repository.GetAllRecords();
                        }
                    }

访问方法时抛出错误。

错误是什么，我理解依赖注入，但我做不到。使用通用存储库时我做错了什么？